BOSTON, Nov. 2 (Ticker) -- Ricky Davis' offensive outburst in overtime got Larry Brown's "dream job" off to a sour start.

Davis scored nine of his 27 points in the extra period and was among five players in double figures to lead the Boston Celtics to a 114-100 victory over the New York Knicks in the season opener for both teams.

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The Celtics scored 20 points in overtime and spoiled the Knicks' coaching debut of Brown, the rebuilding master who began his 23rd season with his eighth team. He called coaching his hometown team his "dream job."

Paul Pierce opened the scoring in the overtime with a pair of free throws before Davis hit a jumper to extend the lead to 98-94. Stephon Marbury made a runner, but Mark Blount sank two free throws, giving Boston a 100-96 edge with 3:36 left.

Davis widened the margin with a 3-pointer and a tip-in of Delonte West's alley-oop feed on consecutive possessions for a 105-96 bulge.

"I saw the play develop and they got to the scuffle first for the ball," West said. "I wasn't quite sure who the ball was out on and I lured Marbury away from (Davis) and was able to get him a quick pass."

Beginning his second pro season and first full campaign as Boston's starting point guard, West just missed a triple-double with 14 points, nine rebounds and nine assists. He also blocked four shots and had three steals.

"He did all the little things," Boston coach Doc Rivers said. "That's what makes him a good player. He may not be a pure point guard but he makes a lot of the little plays."

The Knicks trailed, 93-90, late in the fourth quarter, when Marbury made a driving layup with 16 seconds remaining. After Pierce made 1-of-2 free throws, Antonio Davis sank a fadeaway one-hander for the Knicks, tying the contest with two seconds to go.

After taking Detroit to the NBA Finals in the past two years and winning the title in 2004, Brown saw the Knicks miss 15 foul shots and was frustrated in the opening game of what may be his greatest coaching challenge.

"They shoot 47 free throws, they outrebound us by (16) and we turn the ball over 22 times," Brown said. "Those are three areas we talked about that we needed to do a good job, especially on the road. ... You can't do that and expect to win, especially against a good team like this."

Pierce scored 30 points and grabbed 12 rebounds and Blount scored 19 points for the Celtics, who have won 13 of their last 17 regular season meetings against New York.

"It feels great, especially a win over division team," Davis said. "It's great for us to get a little momentum going. I guess we passed all the tests."

Marbury scored 22 points and Eddy Curry added 19 in his first game with the Knicks after being acquired in a trade with Chicago last month.

"We finished our regulation with our emotions high and flying and we just went into overtime and kind of came unglued," Curry said. "I think we definitely took some steps in the right direction tonight, but we have to finish the game."